JQuery MCQ Quiz – JQuery Online Test Questions with Answers

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Dear Readers, We have framed JQuery quiz in this post. This JQuery programming MCQ Online Test contains all the questions with answers that frequently occurs in the technical examinations. Therefore, candidates can improve their skills more by practicing this JQuery Programming Online Test. JQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML pages. It is free, open-source software and the JQuery is fast, small, and feature-rich JavaScript library includes a motto: Write less, do more.

Details About JQuery Quiz

Candidates note down some necessary information about the JQuery MCQ quiz. The above table states the overview of the quiz, the number of questions and time limit allowed for the exam. Moreover, aspirants those whoever is eagerly awaiting to attend the JQuery MCQ Online Test can check the below portions of the article. Also, this is a multiple choice questions type of exam. Also, candidates can participate the test as they wish to do.

JQuery MCQ Quiz Instructions

Contenders need to check the basic instructions that required for the JQuery Online Test. Moreover, before appearing for the test candidates should know the original instructions so that they can go through the test smoothly. Furthermore, you can see the pattern of the quiz quickly. Also, the aspirants who want to answer a particular question can click on the number mentioned above. In this JQuery Online Test, candidates have 25 questions for 25 marks as discussed above. Moreover, no negative marking is there for the test.

JQuery Online Test Questions

What is the purpose of the jQuery.noConflict() method?
a) It disables all jQuery events.
b) It removes all jQuery UI components.
c) It prevents conflicts between multiple JavaScript libraries.
d) It disables all jQuery animations.
Answer: c) It prevents conflicts between multiple JavaScript libraries.
Explanation: The jQuery.noConflict() method is used to prevent conflicts between jQuery and other JavaScript libraries that might be used on the same web page. It restores the original value of the $ variable, which may have been modified by other libraries, and allows jQuery to coexist peacefully with other libraries.

Which of the following jQuery methods is used to add new elements to the DOM?
a) append()
b) prepend()
c) before()
d) after()
Answer: a) append()
Explanation: The append() method in jQuery is used to add new elements as the last child of the selected element(s) in the DOM. It is commonly used to dynamically add content to a webpage.

What is the purpose of the jQuery find() method?
a) To filter elements based on a selector
b) To iterate over a collection of elements
c) To retrieve the parent element of a selected element
d) To add a class to a selected element
Answer: a) To filter elements based on a selector
Explanation: The find() method in jQuery is used to search for elements that match a specific selector within the selected element(s) or their descendants. It is commonly used to filter elements based on a certain criteria.

Which of the following is the correct way to bind a click event handler to an element with the id “myButton” in jQuery?
a) $(“#myButton”).on(“click”, function() { /* event handler code / });
b) $(“.myButton”).click(function() { / event handler code / });
c) $(“button”).click(function() { / event handler code / });
d) $(“#myButton”).click(function() { / event handler code */ });
Answer: d) $(“#myButton”).click(function() { /* event handler code */ });
Explanation: The correct way to bind a click event handler to an element with a specific id (in this case, “myButton”) in jQuery is by using the click() method with the id selector as shown in option d.

What is the purpose of the jQuery fadeOut() method?
a) To remove an element from the DOM
b) To hide an element with a fading effect
c) To toggle the visibility of an element
d) To animate the width of an element
Answer: b) To hide an element with a fading effect
Explanation: The fadeOut() method in jQuery is used to hide an element by fading it out with a specified duration. It gradually reduces the opacity of the element until it becomes completely transparent, creating a fading effect.

Which of the following jQuery methods is used to make an asynchronous HTTP request?
a) ajax()
b) get()
c) post()
d) load()
Answer: a) ajax()
Explanation: The ajax() method in jQuery is used to make asynchronous HTTP requests to a server. It provides a wide range of options and allows customization for making requests such as GET, POST, PUT, DELETE, etc. It is commonly used for fetching data from a server and updating the DOM dynamically without page reloads.

Which of the following is the correct way to chain multiple jQuery methods together?
a) Using comma (,) between methods
b) Using pipe (|) between methods
c) Using dollar sign ($) between methods
d) Using dot (.) between methods
Answer: d) Using dot (.) between methods
Explanation: In jQuery, chaining is a technique used to perform multiple operations on the same set of elements in a single statement. The correct way to chain multiple jQuery methods together is by using dot (.) between methods, as shown in option d.

What is the purpose of the jQuery val() method?
a) To validate form input fields
b) To set the value of an element
c) To retrieve the value of an element
d) To validate the visibility of an element
Answer: c) To retrieve the value of an element
Explanation: The val() method in jQuery is used to retrieve the current value of an element, such as an input field, select box, or textarea. It is commonly used to get the user’s input from form fields or to retrieve the value of an element for further processing.

Which of the following jQuery methods is used to remove an element from the DOM?
a) hide()
b) detach()
c) remove()
d) empty()
Answer: c) remove()
Explanation: The remove() method in jQuery is used to completely remove an element, including its associated data and event handlers, from the DOM. It is commonly used to dynamically remove elements from a webpage.

What is the purpose of the jQuery each() method?
a) To iterate over a collection of elements
b) To toggle the visibility of an element
c) To add a class to a selected element
d) To filter elements based on a selector
Answer: a) To iterate over a collection of elements
Explanation: The each() method in jQuery is used to iterate over a collection of elements and perform a function on each element individually. It is commonly used to perform operations on a set of elements sequentially.

Which of the following jQuery methods is used to toggle the visibility of an element?
a) toggle()
b) show()
c) hide()
d) fadeToggle()
Answer: a) toggle()
Explanation: The toggle() method in jQuery is used to toggle the visibility of an element. If the element is hidden, it will be shown, and if it is visible, it will be hidden. It is commonly used for creating toggle buttons or toggling the display of content.

What is the purpose of the jQuery animate() method?
a) To validate form input fields
b) To set the value of an element
c) To retrieve the value of an element
d) To create custom animations for elements
Answer: d) To create custom animations for elements
Explanation: The animate() method in jQuery is used to create custom animations for elements by changing CSS properties over a specified duration. It allows for smooth transitions and complex animations, and is commonly used for adding visual effects to web pages.

Which of the following is the correct way to handle errors in a jQuery Ajax request?
a) using the done() method
b) using the fail() method
c) using the always() method
d) using the success() method
Answer: b) using the fail() method
Explanation: The fail() method in jQuery is used to handle errors that occur during an Ajax request. It is called when the request fails, such as when there is a network error or a server-side error. It is commonly used to handle error cases and provide appropriate feedback to the user.

What is the purpose of the jQuery event.preventDefault() method?
a) To prevent the default behavior of an event
b) To stop the propagation of an event
c) To trigger an event manually
d) To remove an event handler from an element
Answer: a) To prevent the default behavior of an event
Explanation: The event.preventDefault() method in jQuery is used to prevent the default behavior of an event, such as a form submission or a link click. It is commonly used to customize the behavior of events and prevent them from triggering their default actions.

Which of the following jQuery methods is used to append content to an element?
a) append()
b) prepend()
c) before()
d) after()
Answer: a) append()
Explanation: The append() method in jQuery is used to add content to the end of the selected element. It is commonly used to dynamically add content, such as HTML elements or text, to an existing element.

What is the purpose of the jQuery prop() method?
a) To set or retrieve the value of a property of an element
b) To set or retrieve the HTML content of an element
c) To set or retrieve the CSS styles of an element
d) To set or retrieve the visibility state of an element
Answer: a) To set or retrieve the value of a property of an element
Explanation: The prop() method in jQuery is used to set or retrieve the value of a property of an element, such as the checked state of a checkbox or the selected option of a select box. It is commonly used for manipulating the properties of form elements or other DOM elements.

Which of the following jQuery methods is used to add a CSS class to an element?
a) addClass()
b) removeClass()
c) toggleClass()
d) hasClass()
Answer: a) addClass()
Explanation: The addClass() method in jQuery is used to add one or more CSS classes to the selected element. It is commonly used for dynamically adding styles or applying visual effects to elements on a web page.

What is the purpose of the jQuery filter() method?
a) To validate form input fields
b) To set or retrieve the value of an element
c) To filter elements based on a selector
d) To remove an element from the DOM
Answer: c) To filter elements based on a selector
Explanation: The filter() method in jQuery is used to filter a collection of elements based on a selector or a function. It allows for selectively retrieving elements that match a certain condition, such as specific attribute values or element types.

Which of the following jQuery methods is used to perform asynchronous requests?
a) ajax()
b) get()
c) post()
d) load()
Answer: a) ajax()
Explanation: The ajax() method in jQuery is used to perform asynchronous HTTP requests, allowing for communication with a server without blocking the UI. It provides more advanced and flexible options for handling requests, such as custom headers, data serialization, and error handling, making it a powerful tool for AJAX functionality in web applications.

About JQuery

JQuery makes things like HTML document traversal and even the manipulation, animation, event handling, and Ajax much more straightforward with an easy-to-use the API that works across a multitude of web browsers. Moreover, with a combination of versatility and extensibility. Furthermore, the purpose of the JQuery is to make the programmers much easier to use JavaScript on their website. Here are the vital core features supported by the JQuery are DOM manipulation, Cross Browser Support, Latest Technology, Event handling, Lightweight, Animations, AJAX Support.

Benefits Of Practising The JQuery Quiz

By this test, aspirants can gain more knowledge regarding the JQuery Quiz. Moreover, you will come to know this test has handy notes of the topic. So, make a note of it. After the successful completion of the test, candidates can see the appropriate explanation for every question. Also, they can know simple tricks to solve any tricky questions. Also, every individual can acquire confidence in the concept and understand a simple way.

How To Check JQuery Programming Online Test Results

You can check the JQuery Programming Online Test Results after clicking the submit button. After attempting the test don’t go away stay here to review the results. Also, the results will be in the form of the marks or ranks even grades. Also, aspirants can check the quick answers with explanation for each question you have answered. Hence, this reduces the mistakes in future.

So, we advise the candidates to take this JQuery MCQ seriously. Furthermore, you can go through the JQuery Online Test on different places and also in the guides. Regarding any other queries on this JQuery Quiz, you can let us know by commenting in the comment box below of our Freshers Now site.